The Research On An Inverter Power Supply System Based On DSP

Judging by the features such as small size and light weight, traditional powers have been widely used in navigation, aviation, medical, and telecommunications industries. However, with the rapid development of 3G technology and the Internet, people had to rely power set higher requirements: processor speed increasing ever-smaller, ever more complex control algorithms, a growing capacity, increasingly low cost. DSP development is to meet this demand, it achieved its powerful functional features of thing waveform precision control, protection and RMON, and the use of more advanced control strategy provided a good platform. If we take the research of DSP as a breakthrough to the abrupt power supply system, it will be possible in the future to occupy the commanding height of competition, good economic benefits and social benefits.DC/AC power converter system that the paper has researched takes a practical project as a background and bases on DSP. The DSP control system is the focus of the paper;it is the core of the system used to achieve various control strategies, the most critical component of the protection functions. The paper takes into account the prestige of electrical systems within the parameters of the system and the impact of environmental factors to achieve actual needs and the use of low-cost flexibility, integration of the DSP design a system based on the overall hardware structure thing, and a detailed analysis.The paper analyzes SPWM in depth. Through comparative study of the three traditional sampling methods using Matlab for analysis of its ability to suppress harmonics, resulting in better;SPWM generated through the analysis of waveform patterns and characteristics, the philosophy of choice SPWM, and make a detailed analysis of their algorithms.To better export performance systems, this article explores the control strategy. Up against the system will be Fuzzy Self-turning PI Control, and to be realized.Papers in-depth analysis of three-phase power sequencing thing against user needs, the introduction of a three-phase circuit-wide bridge rely structure is the core of the system hardware used TMS320F240 control system and on the basis of expansion of-the system for functional modules;TMS320F240 its software system used for the compilation of language and mixed programming language C, the text given its software development process and the functions of the system to achieve, given the software flowchart. Papers separately for structural, hardware, software for optimized design of the three to get a good thing system performance laid the foundation.Finally, the paper has specifically examined the use of CAN bus to achieve more powers' parallel connection options with the analysis of the conditions, achieving rely on the use of can bus after the expansion and exchange.